In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
platform\/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer()<\/p>\n
hp_get_string_from_buffer() clamps the converted string length against
\nthe destination buffer size with “size > dst_size”, so when the
\nconverted length is exactly equal to dst_size, conv_dst_size is left
\nat dst_size and the unconditional NUL terminator write<\/p>\n
\tdst[conv_dst_size] = 0;<\/p>\n
lands one byte past the destination buffer. This is the same shape of
\nbug as the previously fixed off-by-one in hp_convert_hexstr_to_str():
\nthe buffer is sized correctly for the content, but the terminator
\nwrite is never checked against that size.<\/p>\n
Fix by changing the comparison to “>=” so conv_dst_size is always left
\nwith room for the terminator.<\/p>\n
All fixed-size destinations that reach this function (path[512],
\ncurrent_value[512], current_password\/current_value[64], and the
\nper-entry buffers in encodings[][512] and prerequisites[][512]) are
\naffected.<\/p>\n","protected":false},"excerpt":{"rendered":"
In the Linux kernel, the following vulnerability has been resolved:<\/p>\n
platform\/x86: hp-bioscfg: fix off-by-one write in hp_get_string_from_buffer()<\/p>\n
hp_get_string_from_buffer() clamps the converted str<\/p>\n","protected":false},"template":"","meta":[],"categories":[],"tags":[],"class_list":["post-21345","vuln","type-vuln","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln\/21345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/vuln"}],"about":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=\/wp\/v2\/types\/vuln"}],"wp:attachment":[{"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.54iter.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}